I had problems from the start with the new pmags feeding in my Bushmaster. This was with both Wolf and Winchester and happened with all three of the four mags I loaded (I didn't bother trying with the last one). The first round in each mag would consistently not strip since the nose would smash below the feed ramp. After I cleared out the first two or three rounds, it would cycle fine for a while and then the same thing would often happen with the the 3rd or so last round toward the end. This also happened a couple times in the middle, but not as consistently. I don't know if this was a factor, but the mags would wobble a lot. Some other notes I should make for the THR community was that all firing was done standing or kneeling --none prone so pressure on the mag from the bottom was not a factor. The same rifle has functioned with all other makes of quality mags: aluminum (Bush, Colt, OK, LaBelle, etc), orlite, thermold, etc. standing, kneeling, prone while monopodding on the mags etc. BTW, I did not run over any of the mags with a vehicle like the Magpul guys did in their video. I did not have a chance to do this at the range, but once I got home I swapped out the new pmag springs with some very used orlite springs and manually cycled through 30 rounds of M855 a couple times with each of the three mags. I had one first round hang-up and a couple of slow strippings, but it seemed to function better. I'll leave them loaded with the old springs and try firing again in the next few days or so. Has anyone else have similar experiences with these mags? Does this just sound like excessively tight new springs? Thanks!